Advanced run-out table cooling technology based on ultra fast cooling and laminar cooling in hot strip mill |
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Authors: | En-yang Liu Liang-gui Peng Guo Yuan Zhao-dong Wang Dian-hua Zhang and Guo-dong Wang |
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Affiliation: | State Key Laboratory of Rolling and Automation, Northeastem University, Shenyang 110819, China |
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Abstract: | In order to meet the severe requirements of market and reduce production costs of high quality steels, advanced run-out table
cooling based on ultra fast cooling (UFC) and laminar cooling (LC) was proposed and applied to industrial production. Cooling
mechanism of UFC and LC was introduced first, and then the control system and control models were described. By using UFC
and LC, low-cost Q345B strips had been produced in a large scale, and industrial trials of producing low-cost dual phase strips
were completed successfully. Application results show that the ultra fast cooling is uniform along the strip width and length,
and does not affect the flatness of strips. The run-out table cooling system runs stably with a high precision, and makes
it possible for the user to develop more high quality steels with low costs. |
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Keywords: | hot strip mill ultra fast cooling laminar cooling run-out table cooling control model control system |
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